Seepage protector for masonry buildings



A. CHENEY Filed 001;. 8, 1951 I iiiveii/ioi" fizz/a 7v C'he 77 8 la M1 y SEEPAGE PROTECTOR FOR MASONRY BUILDINGS July 19, 1932.

Patenhd July 19, 1932 UNITED STATES PATENT OFFICE ALLAN CHENEY, OF MELROSE, MASSACHUSETTS SEEPAGE PROTECTOR FOR MASONRY BUILDINGS Application fled October 8, 1931.

its way into and through a roof. The protector may be employed in connection with parapets or walls, and for similar purposes.

The invention will best be understood by reference to the following description, when taken in connection with the accompanying drawing of certain specific embodiments thereof, while its scope will be pointed out more particularly in the appended claims.

In the drawing:

Fig.1 is a vertical, sectional view of a portion of a masonry building having a seepage protector embodying the mventionf Fig. 2 is a perspective view of one the seepage protector;

. Fig. 3 IS a sectional view, on an enlarged scale, of the preferred wall siding or facing forming a part of the protector;

Fig. 4 is a sectional view, on an enlarged scale, on line 44 of Fig. 3; I

Fig. 5 isa perspective view of a modification of the'protector;

Fig. 6 is a vertical, sectional view, of another modification of the protector; and

Fig. 7 is a vertical, sectional view of still another modification of the protector.

form of Referring to the drawing, and to the embodiments of the invention illustrated therein, and having reference at first to Fig. 1,

there is shown by way of example a portion of a masonry building comprising a molded, concrete roof 10, and a parapet, the latter as shown comprising courses of brick 11, a facing 12 and a coping 13, united as is customary by mortar .14. Adjacent to the-parapet, the

, roof has an oblique portion 15 of common Serial no. 587,543.

pared roofing, mopped with any bituminous material as it is applied. Sometimes these roof sheathings are built of alternate layers of felt and asphalt, or felt and coal tar pitch, or felt and plastic cement.

To prevent moisture which enters the coping from seeping downwardly through the parapet and into and through the roof, I have provided a novel seepage protector comprising a flashing strip 17 of sheet metal such as copper, and a siding or facing 18, of suitable sheet material, which may be and herein is woven cotton drilling 19, saturated with asphalt 20, and having coatings 21 of asphalt on both sides. This material is preferred, because, while thoroughly waterproof and durable, it is flexible, and when applied, can be overlapped with" the roof sheathing in some such manner as that illustrated in Fig. 1, and will flex and accommodate itself to 5 the irregularities of the surfaces to which it is applied. It is not only overlapped to a.

considerable extent with the roof sheathing,

but, as herein shown, is carried down the oblique portion to the horizontal portion, and as it is being applied, is thoroughly mopped with bituminous material, to make a watertight joint.

The sliding 18 is suitably secured to the flashing 17 as by providing the latter with a downwardly-directed flange 22, folded to present a re-entrant portion 23, presenting a groove or channel 24, which receives a correspondingly folded margin of the siding 18, the two parts being tightly squeezed together and clenched to form a strong and waterproof seam. As shown in the form illustrated in Figs. -1 and 2, this scam is especially strong and effective, because the flashing which is employed is similar to that illustrated in U. S. Letters Patent No.

1,728,955, issued September 24, 1929, to The Cheney Company, as my assignee.

This flashing comprises-a strip of sheet metal, such as copper, folded to present I grooves 25 and ridges 26, alternately arranged on both sides of the strip. The grooves and ridges are formed with side walls 27 comm dn to both grooves and ridges, and inclined to both faces of the sheathing to form dovetail grooves and rid es. The side walls 'taper longitudinally o the grooves and ridges. As stated in the said patent, the

flashing, when embedded in the mortar, provides a perfect mechanical bond in every direction between the flashin and the adjacent course ofmasonr T e bending of the flashing to form the ange 22 flattens the ridges, so that the side walls are pressed against the bottoms of the grooves, thereb forming plaits 28, best shown in Fi 4 whic not onlyreinforce and stiffen the ange, but

also serve to pinch the compressible siding 18 in the manner shown in Fig. 4, and to hold the siding much more securely than would be possible with a plain, flat flashing.

This effect can also be secured in the form and pinch the siding in a manner similar to that which is shown in Fig. 4.

In case a plain, flat flashing 33 is employed, as in the form shown in Fig. 6, additional strength is imparted to the seam by a doubleclenc ed joint, formed by a flange 34 bent inwardly as at 35, then upwardly as at 36, then outwardly as at 37, and then downwardly as at 38. Also in Fig. 7, there is shown a plain, flat flashing 39, having a downwardly-directed flange. 40, to which the siding is secured as by rivets 41. However, the form illustrated in Figs. 1 to 4, inclusive, is preferred, because not only is the seam strengthened by the plaits, but the interlocking of the flashing in all directions with the mortar avoids breaking of the bond, when subjected to stress in any direction. In all forms of the invention, however, the protector can be manufactured as a merchantable article, to be supplied to the builder and installed with ease and rapidity. The depth of the siding will depend upon the situation in which it is to be used, and in all cases will be great enough to overlap the roof sheathing, and to provide a perfectly safe and durable, waterproof construction.

Having thus described certain embodiments of the invention, but without limiting myself thereto, what I claim and desire by Letters Patent to secure is: p

1. In a seepage protector for masonry walls and the like, the combination of a continuous sheet metal flashing extending through said wall from side to side for em-- bedding horizontally in a layer of 11101453 and a flexible side for overlying a vertical together continuously throughout their' lengths.

3. In a seepage protector for masonrywalls and the like, a metal flashing sheet of desired width to extend through said wall from side to side and formed with means adapted for interlocking engagement with the mortar of said wall, and formed with a portion extending beyond the side of said wall, and a flexible fabric base flashing connected to said flashing sheet continuously along one edge thereof, said flexible flashing being entirely on the outside of said wal when applied thereto.

4. A seepage protector for masonry walls and the like as in claim 3 wherein the extending edge of the flashing sheet and flexible flashing are interlocked together as by folding the flashing in reverse bends.

5. A seepage protector for masonry buildings and the like according to claim 3 wherein'the sheet metal flashing is provided with a downwardly extending longitudinal flange provided with inwardly extending reentrant portions terminating in a groove, for interlocking engagement with the flexible flashing whereby said flexible flashing will lie snugly against the side of said wall.

6. In a seepage protector for masonry walls and the like, the combination of a continuous metal flashing sheet of substantial width to extend through said wall, said sheet being formed with transversely extending ribbed portions providing grooves and ridges for the reception of mortar or the like to bond said sheet securely in said wall and prevent relative lateral and vertical movement of the masonry courses above and below said sheet, one longitudinal edge of said sheet providing a downwardly and inwardly extending portion providing a reentrant groove, and a flexible fabric waterproofed covering lockingly engaged in said groove and adapted to closely fit and overlie the side of said well and adjacent roof joint.

7. A seepage protector for masonry buildings and the like according to claim 6 wherein the ribbed portions of said sheet are flattened across the reentrant groove providing spaced unyielding thickened portions for compressing the 'fabric'and securely looking said fabric to said flashin sheet.

8, In a building construction, the comtiously connected thereto. 11. A. nailless, solderless bination of a masonry wall comprising su-- perposed courses of masonry with layers of mortar therebetween, a roof, and a roof coverin therefor, a' metal flashing sheet extending through said wall and formed with means for the reception of mortar to bond the courses of masonry above and below said sheet securely together against relative lateral and vertical movement, and a flexible fabric waterproof sheet connected to said flashing along one longitudinal edge and extending downwardly along the face of said wall and overlying the roof joint and adapted to be cementitiously connected thereto.

9. .In a building construction, the combination of a masonry wall composed of superosed courses of masonry held together by mtervening beds of mortar, a roof, and a roof covermg therefor, means for (preventin seepage downwardly through sai wall an roof joint therewith, comprising a metal 1 overlie the vertical side of said wall and the i adjacent portion of the roof covering and be cementltiously connected thereto, whereby to rovide means for greventing seepage into t e building exten 'ngl from the outside of said wa inwardly beyond the outer edge of said roofing and securely held in place without nailing.

In testimony whereof, I havelsigned my name to this specification.

, 1 ALLAN CHENEY.

sheet extending through said wall fromside seepage' protector for masonry tion of moisture downwardly through said wall or at the roof joint therewith comprislng an impervious metal flashing sheet em-' bedded in said wall and-bonded thereto and extending entirely therethrough, for preventing the infiltration of moisture downwardly through said wall, and a flexible fabric water roofed sheet permanently connected to sai flashing sheet, a'da ted to overlie the vertical sideof said walil and adjacent portion of said roof and conform snugly. to the irregularities thereof, a covering or said roof of roofing material, said flexible sheet overlapping the outer ed 5 of said roof ooveringand adapted to and moisture,

e cementiproof flashing for masonry buildings having a "wall composed of superposed courses masonry, a roof 'and a covering material for said roof, said flashm com rising a continuous sheet metal flashing 0 imperforate flashing sheets, extending through said wall from side to side and formed with means for the reception'of mortar to bond..

the adjacent courses of masonry above and below said sheet together, a flexible waterproof sheet connected to said flashing sheet v along one longitudinal edge and adapted to continuously. 

